Touchscreen stylus



FIG. 1 is a top front, and bottom perspective view of a touchscreen stylus showing our new design in full line;

FIG. 2 is a side elevation view thereof, the opposite side is identical;

FIG. 3 is a rear elevation view thereof; and,

FIG. 4 is a top plan view. 

The ornamental design for a touchscreen stylus, as shown and described. 